It is none of my business. It's up to you to decide he bought yesterday is used for.
I ______ the help of my colleagues in the preparation of this new column.
— Who are you waiting for?— ______ the man wounded in the left leg.
The scientist corresponds with colleagues in order to learn about matters ______ to her own research.
Education should not be considered to be a(n) ______ in a modern society.
It is often recommended that children _____ chances to get close to nature.